1977140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 4915680

約数和(自身を除く): 2938540

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 110, 121, 172, 190, 209, 215, 220, 242, 380, 418, 430, 473, 484, 605, 817, 836, 860, 946, 1045, 1210, 1634, 1892, 2090, 2299, 2365, 2420, 3268, 4085, 4180, 4598, 4730, 5203, 8170, 8987, 9196, 9460, 10406, 11495, 16340, 17974, 20812, 22990, 26015, 35948, 44935, 45980, 52030, 89870, 98857, 104060, 179740, 197714, 395428, 494285, 988570, 1977140]

約数ペア:

[(1, 1977140), (2, 988570), (4, 494285), (5, 395428), (10, 197714), (11, 179740), (19, 104060), (20, 98857), (22, 89870), (38, 52030), (43, 45980), (44, 44935), (55, 35948), (76, 26015), (86, 22990), (95, 20812), (110, 17974), (121, 16340), (172, 11495), (190, 10406), (209, 9460), (215, 9196), (220, 8987), (242, 8170), (380, 5203), (418, 4730), (430, 4598), (473, 4180), (484, 4085), (605, 3268), (817, 2420), (836, 2365), (860, 2299), (946, 2090), (1045, 1892), (1210, 1634)]